Todd Duffee back in the UFC, faces Phil De Fries at UFC 155

Two years after he left, Todd Duffee (7-2 MMA, 1-1 UFC) is returning to the octagon.

The 26-year-old heavyweight is set to fight Phil De Fries (9-1 MMA, 2-1 UFC) at UFC 155, according to a recent report by Las Vegas Sun that was also confirmed by UFC officials.

UFC 155 takes place Dec. 29 at MGM Grand Garden Arena in Las Vegas and airs live on pay-per-view and FX.

Duffee fills in for Matt Mitrione, who was slated to fight De Fries before he replaced an injured Shane Carwin against Roy Nelson at The Ultimate Fighter 16 Finale.

Once a red-hot prospect in the UFC, Duffee made his octagon debut at UFC 102 with a seven-second KO of Tim Hague, which at the time was considered the fastest knockout in the promotion’s history.

He was released, however, after being knocked out by Mike Russow at UFC 114. He then fought a short-notice bout with then-Strikeforce champ Alistair Overeem and was knocked out in the first round.

Most recently, Duffee surfaced in April, where he notched a first-round of Neil Grove at Super Fight League 4.

De Fries most recently appeared at UFC on FOX 4, where he earned a second-round submission over Oli Thompson. The win put him back on the right foot after a first-round knockout at the hands of Stipe Miocic.

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